﻿<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>图片展开选择</title>
</head>
<body>
<center>
    <img width="200px" height="223px" src="1.bmp" name="x1" />
</center>
<form>
    <center>
        <select onChange="document.x1.src=options[selectedIndex].value">
            <option value="1.bmp">看看图片1</option>
            <option value="2.bmp">看看图片2</option>
            <option value="3.bmp">看看图片3</option>
        </select>
    </center>
</form>

</body>
</html>